CN219267761U

CN219267761U - Heat exchange assembly, battery module and aircraft

Info

Publication number: CN219267761U
Application number: CN202320731190.9U
Authority: CN
Inventors: 骆俊昌; 薛松柏; 许兆华; 谢晒明
Original assignee: Chengdu Wofeitianyu Technology Co ltd; Zhejiang Geely Holding Group Co Ltd
Current assignee: Chengdu Wofeitianyu Technology Co ltd; Zhejiang Geely Holding Group Co Ltd
Priority date: 2023-04-04
Filing date: 2023-04-04
Publication date: 2023-06-27
Anticipated expiration: 2033-04-04

Abstract

The utility model discloses a heat exchange component, a battery module and an aircraft, wherein the heat exchange component comprises: the radiator is internally provided with an air channel flowing through the heating module, and a plurality of air channels are arranged; the branch pipelines are arranged outside the radiator, the plurality of air channels are communicated with the branch pipelines, and the areas of the air inlets of the plurality of air channels show increased state change in the direction from one end of the radiator close to the branch pipelines to one end of the radiator far away from the branch pipelines; and a main pipeline connected with the ventilating duct through the branch pipeline; the heat dissipation device comprises a plurality of heat dissipation devices, a heating module, a plurality of branch pipelines, a main pipeline and a plurality of heat dissipation modules, wherein the heat dissipation devices are arranged at intervals, the heating module is arranged between two adjacent heat dissipation devices, each heat dissipation device is correspondingly provided with a branch pipeline, and the branch pipelines are connected in parallel with the main pipeline. The utility model provides a heat exchange assembly, a battery module and an aircraft, which solve the technical problem of low heat dissipation efficiency of the existing power battery.

Description

Heat exchange assembly, battery module and aircraft

Technical Field

The utility model relates to the technical field of battery heat dissipation, in particular to a heat exchange assembly, a battery module and an aircraft.

Background

Vertical take-off and landing (VTOL) aircraft is a potential mainstream mode for future urban area travel and mountain area logistics transportation, and has a wide application market. The vertical take-off and landing aircraft can be applied on a large scale, so that the traffic jam of a city can be effectively relieved, the urban commuting efficiency is improved, the logistics transportation efficiency in remote areas can be improved, and the economic development is promoted.

The vertical take-off and landing aircraft generally adopts a lithium battery as a power source, and a distributed power system formed by a driving motor, a motor controller and a propeller provides power for a vertical take-off and landing process and a plane flight stage. The vertical take-off and landing aircraft requires a power battery to continuously provide high-power electric energy for a power system in the flight process, and the power battery generates a large amount of heat. If the heat can not be timely and effectively led out, heat accumulation can occur rapidly in the battery, the service life of the battery is reduced if the heat is light, and the flight safety is seriously affected if the heat of the battery is out of control. Therefore, it is necessary to radiate heat from the power battery by the heat radiating device. However, the heat exchange efficiency of the heat dissipation structure adopted by the current power battery is low, and the heat dissipation performance of the heat dissipation structure cannot meet the heat dissipation requirements of the vertical take-off and landing aircraft in various flight stages.

Disclosure of Invention

The utility model mainly aims to provide a heat exchange assembly, a battery module and an aircraft, and aims to solve the technical problem that the existing power battery is low in heat dissipation efficiency.

To achieve the above object, an embodiment of the present utility model provides a heat exchange assembly, including:

the radiator is internally provided with air channels flowing through the heating module, and the air channels are provided with a plurality of air channels;

the branch pipelines are arranged outside the radiator, the air channels are communicated with the branch pipelines, and the areas of the air inlets of the air channels are increased in state change in the direction from one end of the radiator, which is close to the branch pipelines, to one end of the radiator, which is far away from the branch pipelines; and

the main pipeline is communicated with the air duct through the branch pipeline; the heat dissipation device comprises a main pipeline, a plurality of heat dissipation modules, a plurality of heat dissipation devices, a plurality of heat dissipation modules and a plurality of heat dissipation modules, wherein the heat dissipation modules are arranged between two adjacent heat dissipation devices, each heat dissipation device is correspondingly provided with one branch pipeline, and the plurality of branch pipelines are connected in parallel with the main pipeline.

Optionally, in an embodiment of the present utility model, the heat sink includes:

the heat conduction box is internally provided with an air cavity;

the heat dissipation partition plates are arranged in the air cavity to divide the air cavity into a plurality of independent air channels, and the distance between two adjacent heat dissipation partition plates presents increased state change in the direction from one end of the heat conduction box close to the branch pipeline to one end of the heat conduction box far away from the branch pipeline; and

the air distribution box is arranged at the end part of the heat conduction box, an air distribution cavity with an opening is formed in the air distribution box, the opening faces the air inlet of the air duct, and the branch pipeline is connected with the air distribution box.

Optionally, in an embodiment of the present utility model, an end of the gas distribution box is provided with an elongated edge, and the elongated edge extends to a side surface of the heat conducting box.

Optionally, in an embodiment of the present utility model, a material of the heat conducting box is metal; and/or the gas distribution box is detachably connected with the heat conduction box.

Optionally, in an embodiment of the present utility model, the main pipeline includes a main air inlet pipeline connected to the air inlet of the air duct and a main air outlet pipeline connected to the air outlet of the air duct, and the main air inlet pipeline and/or the main air outlet pipeline are/is connected to the air duct through the branch pipeline.

Optionally, in an embodiment of the present utility model, the branch pipe includes a branch air inlet pipe connected to the air inlet of the air duct and a branch air outlet pipe connected to the air outlet of the air duct, the main air inlet pipe is connected to the air inlet of the air duct through the branch air inlet pipe, and the main air outlet pipe is connected to the air outlet of the air duct through the branch air outlet pipe;

each radiator is correspondingly provided with one branch air inlet pipeline, and a plurality of branch air inlet pipelines are connected in parallel with the main air inlet pipeline; and/or, each radiator is correspondingly provided with one branch air outlet pipeline, and a plurality of branch air outlet pipelines are connected in parallel with the main air outlet pipeline.

Optionally, in an embodiment of the present utility model, the heat exchange assembly further includes a heat collector connected to the main air outlet pipeline, so as to collect the warm air flow in the main air outlet pipeline and use for heat exchange with the target heating component.

To achieve the above object, an embodiment of the present utility model provides a battery module, including:

the shell is internally provided with a mounting cavity;

the battery core is arranged in the mounting cavity; and

the heat exchange assembly is the heat exchange assembly described above, the battery core is arranged between two adjacent radiators, the main pipeline is arranged outside the installation cavity, and the branch pipeline extends into the installation cavity.

Optionally, in an embodiment of the present utility model, a plurality of battery cells are provided, and the plurality of battery cells are connected in series through a bus bar, and the heat radiator is disposed between two adjacent battery cells.

To achieve the above object, an embodiment of the present utility model provides an aircraft including the battery module described above.

Compared with the prior art, in the technical scheme provided by the utility model, the air channel arranged in the radiator can be used for flowing the gas refrigerant. Because the air duct is arranged along the heating module, when the gas refrigerant flows in the air duct, the heating module exchanges heat with the gas refrigerant in the air duct, so that heat generated by the heating module is taken away, and the heating module is timely radiated. Compared with the traditional liquid heat dissipation mode, the heat dissipation device directly utilizes flowing gas refrigerants to dissipate heat of the heat generation module, so that heat dissipation efficiency can be guaranteed on one hand, and reliability and safety are improved on the other hand. Moreover, the scheme of the embodiment adopts air cooling to replace liquid cooling, compared with a liquid cooling scheme, pumps, cooling liquid, compressors, condensers, refrigerants and the like are fewer, the pipelines do not need to be closed and circulated, the required pipelines are fewer, the overall weight of a heat dissipation system is reduced, meanwhile, key operation equipment in the system is reduced, the requirements on the compression resistance and assembly precision of the pipelines are lower, normal use cannot be influenced even if leakage points exist, and the reliability is higher. In addition, the air duct of each radiator is connected to the main pipeline through an independent branch pipeline respectively, that is, a plurality of branch pipelines are connected in parallel to the main pipeline, so that gas refrigerants can be respectively conveyed to the air duct of each radiator, each radiator can be guaranteed to work independently, and compared with the fact that a plurality of branch pipelines are connected in parallel to the main pipeline, the reliability of the work of the whole heat dissipation system can be further improved, and heat dissipation can be timely and effectively carried out on the heating module. Moreover, in this embodiment, a plurality of independent air ducts are arranged in the radiator, the area of the air inlets of the air ducts is gradually changed in the direction from one end of the radiator, which is close to the branch pipeline, to one end of the radiator, which is far away from the branch pipeline, so that after the gas in the branch pipeline enters the radiator, the gas flows from one end of the radiator, which is close to the branch pipeline, to one end of the radiator, which is far away from the branch pipeline, so that most or all of the gas flows into the air duct, which is close to the branch pipeline, and the uniform distribution and flow of the gas in the radiator are realized, and the heat exchange efficiency and uniformity of the radiator and the heating module are improved. In addition, in the practical application process, the main pipeline can be connected with an external hot gas source, so that the main pipeline can exchange heat with the heating module under the condition of low temperature, heating of the heating module is realized, and the starting or normal working of the heating module in a low-temperature environment is ensured.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a heat exchange assembly according to an embodiment of the present utility model;

FIG. 2 is a schematic view of a partially exploded view of an embodiment of a heat exchange assembly according to the present utility model;

FIG. 3 is a schematic view of a part of the enlarged structure of the portion A in FIG. 2;

FIG. 4 is a schematic view of a heat exchange module according to an embodiment of the present utility model with a gas distribution box removed;

FIG. 5 is a schematic view of a portion of a heat transfer box in an embodiment of a heat exchange assembly according to the present utility model;

fig. 6 is a schematic view of another embodiment of a heat exchange assembly according to the present utility model.

Reference numerals illustrate:

reference numerals	Name of the name	Reference numerals	Name of the name
				100	Radiator	110	Heat conduction box
120	Heat dissipation partition board	130	Air distributing box
				140	Air duct	150	Lengthened edge
200	Branching pipeline	210	Branched air inlet pipeline
				220	Branched air outlet pipeline	300	Main pipeline
310	Main air inlet pipeline	320	Main air outlet pipeline
				400	Heating module

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments of the present utility model without making any inventive effort, are intended to be within the scope of the embodiments of the present utility model.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

Furthermore, descriptions such as those referred to as "first," "second," and the like in the embodiments of the present utility model are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or an implicit indication of the number of features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the embodiments of the present utility model, the meaning of "plurality" is at least two, for example, two, three, etc., unless explicitly defined otherwise.

In embodiments of the present utility model, unless explicitly specified and limited otherwise, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be either fixedly attached, detachably attached, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the embodiments of the present utility model will be understood by those of ordinary skill in the art according to specific circumstances.

In addition, the technical solutions of the embodiments of the present utility model may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, it should be considered that the combination of the technical solutions does not exist, and is not within the protection scope of the embodiments of the present utility model.

eVTOL (electric vertical takeoff and landing) aircraft require power cells to continuously supply high power electrical energy to the power system during flight, which will generate a large amount of heat. Because the power battery is arranged in the airtight space, if heat can not be timely and effectively led out, heat accumulation can occur rapidly in the power battery, the service life of the battery is reduced if the power battery is light, and the flight safety is seriously affected if the power battery is heavy, so that the thermal runaway of the battery is seriously caused. Therefore, how to solve the heat dissipation problem of the power battery will be one of the key technologies that the eVTOL aircraft needs to solve.

In the automobile industry, the heat dissipation of a power battery of an electric automobile is generally achieved by adding a heat dissipation plate in the battery, transmitting the heat of a battery core to a nearby liquid cooling pipeline through the heat dissipation plate, taking away the heat by cooling liquid flowing in the liquid cooling pipeline, and realizing heat exchange with the surrounding environment through an external radiator, so that the purpose of guiding the heat of the power battery to the outside is achieved. However, the heat exchange efficiency of the heat dissipation system is low, the weight cost of the system is high, and the reliability is low. For eVTOL aircrafts, the heat dissipation system is required to have the characteristics of light weight and high reliability, and the heat dissipation requirement of the eVTOL aircrafts cannot be met by the heat dissipation system of the traditional power battery.

Therefore, the embodiment of the utility model provides a heat exchange assembly, a battery module and an aircraft, which directly utilize flowing gas refrigerants to radiate heat of a heating module, so that on one hand, the radiating efficiency can be ensured, and on the other hand, the reliability and the safety are improved. In addition, the air duct of each radiator is connected to the main pipeline through an independent branch pipeline respectively, that is, a plurality of branch pipelines are connected in parallel to the main pipeline, so that gas refrigerants can be respectively conveyed to the air duct of each radiator, each radiator can be guaranteed to work independently, and compared with the fact that a plurality of branch pipelines are connected in parallel to the main pipeline, the reliability of the work of the whole heat dissipation system can be further improved, and heat dissipation can be timely and effectively carried out on the heating module. Moreover, the inside at the radiator has set up a plurality of independent wind channels, the area of the air intake in a plurality of wind channels is the incremental state change in the direction that the radiator is close to the one end of branch pipeline to the one end that the radiator kept away from the branch pipeline, so set up, after the gaseous entering radiator in the branch pipeline, make gaseous by the radiator be close to the one end flow direction radiator that the branch pipeline kept away from the one end of branch pipeline, prevent that gaseous most or all flows towards in the wind channel that is close to the branch pipeline, realize gaseous evenly distributed and the flow inside the radiator, and then improve the efficiency and the homogeneity of radiator and the heat exchange of heating module heat. In addition, in the practical application process, the main pipeline can be connected with an external hot gas source, so that the main pipeline can exchange heat with the heating module under the condition of low temperature, heating of the heating module is realized, and the starting or normal working of the heating module in a low-temperature environment is ensured.

It should be noted that, the heat exchange assembly in this embodiment may be used for heat dissipation of the heat generating module, and may also be used for heating of the heat generating module, specifically: the main pipeline can be connected with an external cold air source, the cold air flows into the radiator, and the heat of the heating module is taken away through the heat exchange of the air duct and the heating module, so that the heat dissipation of the heating module is realized; the main pipeline can also be connected with an external hot gas source, and the hot gas flows into the radiator to exchange heat with the heating module through the air duct, so that the temperature of the heating module is increased, and the heating of the heating module is realized. For convenience of description, the heat dissipation is mainly described by taking the heat radiator as the heat generating module, and the heat radiator is used for reversely heating the heat generating module and will not be described in detail.

In order to better understand the above technical solutions, the following describes the above technical solutions in detail with reference to the accompanying drawings.

As shown in fig. 1-4, an embodiment of the present utility model provides a heat exchange assembly, including:

the radiator 100, the inside of the radiator 100 is provided with an air channel 140 flowing through the heating module 400, and the air channel 140 is provided with a plurality of air channels;

the branch pipeline 200 is arranged outside the radiator 100, the plurality of air channels 140 are communicated with the branch pipeline 200, and the areas of the air inlets of the plurality of air channels 140 show increased state change in the direction from one end of the radiator 100 close to the branch pipeline 200 to one end of the radiator 100 far away from the branch pipeline 200; and

a main pipeline 300, wherein the main pipeline 300 is communicated with the air duct 140 through the branch pipeline 200; the heat sinks 100 are provided with a plurality of heat generating modules 400 at intervals, each heat sink 100 is correspondingly provided with a branch pipeline 200, and the plurality of branch pipelines 200 are connected in parallel with the main pipeline 300.

In the technical solution adopted in this embodiment, the air refrigerant can flow through the air duct 140 provided inside the radiator 100. Because the air duct 140 is arranged along the heating module 400, when the gas refrigerant flows in the air duct 140, the heating module 400 exchanges heat with the gas refrigerant in the air duct 140, so that heat generated by the heating module 400 is taken away, and heat of the heating module 400 is dissipated in time. Compared with the traditional liquid heat dissipation mode, the heat dissipation module 400 is directly dissipated by using the flowing gas refrigerant in the embodiment, so that on one hand, the heat dissipation efficiency can be ensured, and on the other hand, the reliability and the safety are improved. Moreover, the scheme of the embodiment adopts air cooling to replace liquid cooling, compared with a liquid cooling scheme, pumps, cooling liquid, compressors, condensers, refrigerants and the like are fewer, the pipelines do not need to be closed and circulated, the required pipelines are fewer, the overall weight of a heat dissipation system is reduced, meanwhile, key operation equipment in the system is reduced, the requirements on the compression resistance and assembly precision of the pipelines are lower, normal use cannot be influenced even if leakage points exist, and the reliability is higher. In addition, in the heat exchange assembly provided in the present embodiment, the air channels 140 of each radiator 100 are respectively connected to the main pipeline 300 through an independent branch pipeline 200, that is, the plurality of branch pipelines 200 are connected in parallel to the main pipeline 300, so that the air channels 140 of each radiator 100 can be respectively supplied with gas refrigerants, each radiator 100 can be ensured to work independently, and compared with the case that the plurality of branch pipelines 200 are connected in parallel to the main pipeline 300, the reliability of the whole heat dissipation system can be further improved, and the heat dissipation of the heat generation module 400 can be timely and effectively performed.

In this embodiment, a plurality of independent air channels 140 are disposed in the radiator 100, the areas of the air inlets of the air channels 140 are gradually changed in the direction from one end of the radiator 100 close to the branch pipeline 200 to one end of the radiator 100 far away from the branch pipeline 200, so that after the gas in the branch pipeline 200 enters the radiator 100, the gas flows from one end of the radiator 100 close to the branch pipeline 200 to one end of the radiator 100 far away from the branch pipeline 200, so that most or all of the gas is prevented from flowing into the air channel 140 close to the branch pipeline 200, the uniform distribution and flow of the gas in the radiator 100 are realized, and the heat exchange efficiency and uniformity of the radiator 100 and the heating module 400 are further improved. In addition, in the practical application process, the main pipeline 300 can be connected with an external hot air source, so that the main pipeline can exchange heat with the heating module 400 under the condition of low temperature, heating of the heating module 400 is realized, and starting or normal operation of the heating module 400 in a low-temperature environment is ensured.

Specifically, the heat exchange assembly includes a radiator 100, a branch pipe 200, and a main pipe 300. The heat sink 100 is provided with an air duct 140 for flowing gas refrigerant therein, the heat sink 100 is used for exchanging heat with the heat generating module 400, and the air duct 140 flows through the heat generating module 400. The heat of the heating module 400 absorbed by the radiator 100 can be taken away through the flow of the gas refrigerant in the air duct 140, so that the heat dissipation and the temperature reduction of the heating module 400 are realized. The main pipeline 300 is used for providing a gas refrigerant for the air duct 140 of the radiator 100, and can be connected with an external gas refrigerant storage system to realize heat dissipation of the heating module 400; and can also be used for providing gas heating medium for the air duct 140 of the radiator 100 to realize the reverse heating of the heating module 400. The branch pipe 200 connects the main pipe 300 and the radiator 100, and transfers the gas in the main pipe 300 into the air duct 140 of the radiator 100. To improve the heat dissipation effect, the heat sinks 100 are provided with a plurality of heat generating modules 400, and the heat generating modules 400 are arranged between two adjacent heat sinks 100, so that more heat of the heat generating modules 400 can be taken away. In an embodiment, each radiator 100 is correspondingly provided with a branch pipeline 200, that is, the number of branch pipelines 200 is the same as the number of radiators 100, so that the air channels 140 of each radiator 100 can be respectively supplied with the air coolant. In addition, the plurality of branch pipelines 200 are connected in parallel to the main pipeline 300, so that the air channels 140 of each radiator 100 can be respectively supplied with the air refrigerants, each radiator 100 can be ensured to work independently, and compared with the case that the plurality of branch pipelines 200 are connected in parallel to the main pipeline 300, the reliability of the whole heat dissipation system can be further improved, and the heat dissipation of the heat generation module 400 can be effectively performed in time.

In one embodiment, the gas in the main pipeline 300 enters the radiator 100 through the branch pipeline 200, and is preferentially concentrated near the radiator 100 near the branch pipeline 200, more gas flows into the air duct 140 near the branch pipeline 200 in the radiator 100, and less gas flows into the air duct 140 far from the branch pipeline 200 in the radiator 100, so that the gas is unevenly distributed and flows in the radiator 100. For this reason, in the direction from the end of the radiator 100 close to the branch pipeline 200 to the end of the radiator 100 far from the branch pipeline 200, the area of the air inlets of the air channels 140 in the embodiment presents increased state change, that is, the area of the air inlets of the air channels 140 close to the branch pipeline 200 is smaller than the area of the air inlets of the air channels 140 far from the branch pipeline 200, so that the rate of gas flowing into the air channels 140 close to the branch pipeline 200 can be reduced, the rate of gas flowing in the radiator 100 in the direction far from the branch pipeline 200 is accelerated, the uniformity of gas flowing into different air channels 140 is improved, and the heat exchange efficiency and the heat dissipation uniformity of the radiator 100 and the heat generating module 400 are improved.

It should be noted that the heat exchange assembly in this embodiment may be used for heat exchange with the battery core, and may also be used for heat exchange with other power devices, which is not limited herein.

2-5, in one embodiment of the utility model, a heat sink 100 includes:

the heat conduction box 110, the interior of the heat conduction box 110 forms an air cavity;

the heat dissipation partition plates 120 are arranged in the air cavity to divide the air cavity into a plurality of independent air channels 140, and the distance between two adjacent heat dissipation partition plates 120 presents increased state change in the direction from one end of the heat conduction box 110 close to the branch pipeline 200 to one end of the heat conduction box 110 far away from the branch pipeline 200; and

the gas distribution box 130 is disposed at an end of the heat conduction box 110, a gas distribution chamber having an opening is formed inside the gas distribution box 130, the opening faces the air inlet of the air duct 140, and the branch pipeline 200 is connected with the gas distribution box 130.

In the technical solution adopted in this embodiment, the heat sink 100 includes a heat conduction box 110, a heat dissipation partition 120, and a gas distribution box 130. The heat conducting box 110 is in direct contact with the heat generating module 400 and can exchange heat with the heat generating module 400 to collect heat generated by the heat generating module 400. Preferably, the heat conduction case 110 is made of metal with high thermal conductivity, such as copper, iron, etc., so that the heat exchange efficiency between the heat conduction case 110 and the heat generation module 400 can be improved. The heat conduction box 110 is provided with an air chamber therein, and can flow a gas refrigerant. The heat dissipation baffle 120 is disposed in the air chamber and connected with the inner wall of the heat conduction box 110, so that heat of the heat conduction box 110 can be dispersed to the heat dissipation baffle 120. The heat dissipation baffle 120 is provided with a plurality of heat dissipation baffles 120, and the plurality of heat dissipation baffles 120 are arranged at intervals, so that the air cavity is divided into a plurality of independent air channels 140, the contact area with the gas refrigerant flowing in the air channels 140 is increased, more heat can be taken away, and the heat dissipation efficiency is further improved. The gas distribution box 130 is connected to the branch pipe 200, and the gas distribution box 130 is disposed at an end of the heat conduction box 110 along the flow direction of the gas refrigerant, may be disposed at a front end of the flow direction of the gas refrigerant, may be disposed at a rear end of the flow direction of the gas refrigerant, and may be disposed at both the front end and the rear end. The gas distribution box 130 is provided with a gas distribution cavity and an opening communicated with the gas distribution cavity, and the opening faces the air inlets of the air channels 140, so that the gas refrigerant in the branch pipeline 200 can be conveyed to the inlet of each air channel 140. In order to improve the uniformity of the gas distribution box 130, in the direction from one end of the heat conducting box 110 close to the branch pipeline 200 to one end of the heat conducting box 110 far away from the branch pipeline 200, the distance between two adjacent heat dissipation baffles 120 presents increased state change, so that the air inlet of the air channel 140 close to the branch pipeline 200 is smaller than the air inlet of the air channel 140 far away from the branch pipeline 200, the speed of gas flowing into the air channel 140 close to the branch pipeline 200 can be reduced, the speed of gas flowing in the gas distribution cavity in the direction far away from the branch pipeline 200 is accelerated, the uniformity of gas flowing into different air channels 140 is improved, and the heat exchange efficiency and the heat dissipation uniformity of the heat radiator 100 and the heating module 400 are improved. In addition, the gas distribution box 130 can isolate the gas refrigerant from the heat generating module 400, so as to prevent the heat generating module 400 from being wetted or corroded.

Illustratively, referring to FIG. 2, in one embodiment of the utility model, the end of the manifold 130 is provided with an elongated edge 150, the elongated edge 150 extending to the side of the heat transfer box 110. Specifically, the lengthened edge 150 can extend to the side surface of the heat conducting box 110, so that the contact area between the gas distribution box 130 and the heat conducting box 110 is increased, the tightness of the gas cavity of the gas distribution box 130 arranged behind the heat conducting box 110 can be improved, and the gas refrigerant in the gas cavity is prevented from flowing out from the gap between the gas distribution box 130 and the heat conducting box 110, so that the heat dissipation effect is improved.

Referring to fig. 2, 4 and 6, in an embodiment of the present utility model, the main pipe 300 includes a main inlet pipe 310 connected to an inlet of the air duct 140 and a main outlet pipe 320 connected to an outlet of the air duct 140, and the main inlet pipe 310 and/or the main outlet pipe 320 communicate with the air duct 140 through the branch pipe 200. Specifically, the main air inlet pipe 310 is used for conveying a gas refrigerant to the air duct 140, and after the gas refrigerant exchanges heat with the heat dissipation partition 120 or the heat conduction box 110, a warm air flow is formed, and the main air outlet pipe 320 is used for discharging the warm air flow. In one embodiment, the outlet of the air duct 140 is provided with an air inlet box, through which the warm air flow is collected and discharged through the main air outlet pipeline 320, so that the warm air flow can be isolated from the heat generating module 400, and the heat generating module 400 is prevented from being wetted or corroded.

Referring to fig. 2, 4 and 6, in an embodiment of the present utility model, the branch pipe 200 includes a branch inlet pipe 210 connected to an inlet of the air duct 140 and a branch outlet pipe 220 connected to an outlet of the air duct 140, the main inlet pipe 310 is connected to the inlet of the air duct 140 through the branch inlet pipe 210, and the main outlet pipe 320 is connected to the outlet of the air duct 140 through the branch outlet pipe 220;

wherein, each radiator 100 is correspondingly provided with a branch air inlet pipeline 210, and a plurality of branch air inlet pipelines 210 are connected in parallel with the main air inlet pipeline 310; and/or, each radiator 100 is correspondingly provided with a branch air outlet pipeline 220, and a plurality of branch air outlet pipelines 220 are connected in parallel with the main air outlet pipeline 320.

Specifically, the branched air inlet pipe 210 is used for delivering the gas refrigerant in the main air inlet pipe 310 into the air duct 140, and the branched air outlet pipe 220 is used for discharging the warm air flow. It is understood that the branched inlet pipe 210 is connected to the air duct 140 through the air dividing box 130 at the inlet of the air duct 140, and the branched outlet pipe 220 is connected to the air duct 140 through the air dividing box 130 at the outlet of the air duct 140. In an embodiment, each radiator 100 is correspondingly provided with a branch air inlet pipeline 210 and/or a branch air outlet pipeline 220, the plurality of branch air inlet pipelines 210 are connected in parallel to the main air inlet pipeline 310, and the plurality of branch air outlet pipelines 220 are connected in parallel to the main air outlet pipeline 320, so that an airflow flow path from the main air inlet pipeline 310 to the main air outlet pipeline 320 is realized. Moreover, the air flows of each air duct 140 flow independently, improving the operational independence of the heat sink 100.

Illustratively, in an embodiment of the present utility model, the heat exchange assembly further includes a refrigerant storage (not shown) connected to the main air inlet 310, the refrigerant storage being configured to store the temperature adjusting medium and release the temperature adjusting medium into the main air inlet 310, such that the temperature of the air flow in the main air inlet 310 is adjustable. Specifically, in order to adjust the temperature of the gas refrigerant in the air duct 140, a refrigerant storage is further provided. The refrigerant storage is connected with the main air inlet pipeline 310, and can release the temperature-adjusting medium into the main air inlet pipeline 310, so that the temperature of the gas refrigerant in the main air inlet pipeline 310 is reduced, and the heat dissipation effect is further improved. Optionally, the temperature adjusting medium may be nitrogen or carbon dioxide, which can delay the spread of fire when the heating module 400 generates fire, thereby improving safety. For convenience of control, a temperature regulating switch may be further disposed between the refrigerant storage and the main air inlet pipe 310 to control release of the temperature regulating medium.

Illustratively, in one embodiment of the present utility model, the heat exchange assembly further includes a heat collector (not shown) coupled to the primary air outlet pipe 320 for collecting the warm air flow in the primary air outlet pipe 320 and for heat exchange with the target heating element. Specifically, through the heat collector, the warm air flow discharged through the main air outlet pipeline 320 can be collected for heating the module to be heated. For example, the collected warm air flow can be conveyed to the position of the wing of the aircraft and is subjected to heat exchange with the wing, so that the temperature of the wing is increased, the wing is prevented from being frozen in a lower environment, and the normal flight of the aircraft is ensured.

the shell is internally provided with a mounting cavity;

the battery core is arranged in the mounting cavity; and

the heat exchange assembly is the heat exchange assembly described above, a battery core is arranged between two adjacent radiators, the main pipeline is arranged outside the installation cavity, and the branch pipeline extends into the installation cavity.

Specifically, the specific structure of the heat exchange assembly refers to the above embodiment, and since the battery module adopts all the technical solutions of the above embodiment, the battery module at least has all the beneficial effects brought by the technical solutions of the above embodiment, and will not be described in detail herein. It can be appreciated that the heat exchange component can radiate the heat of the battery cell, so that the thermal runaway caused by the overhigh temperature of the battery cell is prevented. That is, the battery cells constitute the heat generating module 400.

In an exemplary embodiment of the present utility model, a plurality of battery cells are provided, and the plurality of battery cells are connected in series through a bus bar, and a heat sink is provided between two adjacent battery cells. Through setting up a plurality of battery cells, can improve battery module's capacity, satisfy the demand of big mileage continuation of journey. And the radiator is arranged between the adjacent battery cells, so that the gas refrigerant in the air duct can be fully utilized, more heat can be taken away, and the battery cells can be timely radiated.

To achieve the above object, an embodiment of the present utility model provides an aircraft, which includes the battery module described above. Specifically, the specific structure of the battery module refers to the above embodiment, and because the aircraft adopts all the technical solutions of the above embodiment, the aircraft has at least all the beneficial effects brought by the technical solutions of the above embodiment, and will not be described in detail herein. It is understood that the battery module continuously provides electrical energy to the power system of the aircraft.

The foregoing description is only the preferred embodiments of the present utility model, and is not intended to limit the scope of the embodiments of the present utility model, and all the equivalent structural changes made by the descriptions of the embodiments of the present utility model and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the embodiments of the present utility model.

Claims

1. A heat exchange assembly, the heat exchange assembly comprising:

2. The heat exchange assembly of claim 1, wherein the heat sink comprises:

the heat conduction box is internally provided with an air cavity;

3. The heat exchange assembly of claim 2 wherein the ends of the manifold are provided with elongated sides extending to the sides of the heat transfer box.

4. A heat exchange assembly according to claim 2 or claim 3, wherein the heat conducting box is of metal; and/or the gas distribution box is detachably connected with the heat conduction box.

5. The heat exchange assembly of claim 1, wherein the main conduit comprises a main inlet conduit connected to the inlet of the air duct and a main outlet conduit connected to the outlet of the air duct, the main inlet conduit and/or the main outlet conduit communicating with the air duct through the branch conduit.

6. The heat exchange assembly of claim 5 wherein the branch conduit includes a branch inlet conduit connected to the inlet of the air duct and a branch outlet conduit connected to the outlet of the air duct, the main inlet conduit being connected to the inlet of the air duct through the branch inlet conduit, the main outlet conduit being connected to the outlet of the air duct through the branch outlet conduit;

7. The heat exchange assembly of claim 6 further comprising a heat collector connected to the primary air outlet conduit for collecting a flow of warm air in the primary air outlet conduit and for heat exchange with a target heating element.

8. A battery module, characterized in that the battery module comprises:

the shell is internally provided with a mounting cavity;

the battery core is arranged in the mounting cavity; and

the heat exchange assembly is as claimed in any one of claims 1 to 7, the battery core is arranged between two adjacent radiators, the main pipeline is arranged outside the installation cavity, and the branch pipeline extends into the installation cavity.

9. The battery module according to claim 8, wherein a plurality of the battery cells are provided, the plurality of the battery cells are connected in series by a bus bar, and the heat sink is provided between two adjacent battery cells.

10. An aircraft, characterized in that it comprises a battery module according to claim 8 or 9.